Critical barriers to the integration of green roofs in Ghanaian construction projects

Purpose Reportedly, there has been a plethora of research that magnifies the benefits of integrating green roofs into building projects. However, its implementation is seen less in buildings in developing countries, including Ghana. Therefore, this study aims to analyse the barriers to the integration of green roofing systems in Ghanaian building projects. Design/methodology/approach The study adopts a quantitative methodological approach to address the research aim. First, a literature review is conducted to identify 15 barriers to green roof implementation. Next, the barriers are evaluated using fuzzy analysis techniques to group them and determine their criticality. Findings Findings indicate that the critical barriers to green roofs implementation can be categorised into three groups: technical-economic implementation barriers, policies and unsound assessments, and finally, support from government and damages to the environment. All the groups were identified as critical, with the most severe barrier factor being a low level of awareness. Research limitations/implications This study provides valuable insights for professionals and stakeholders in Ghana's building systems and environment to address the barriers to integrating green roofing systems. Strategies such as public awareness, financial incentives and establishing regulatory policies can alleviate key challenges. Originality/value As one of the pioneering studies on green roof barriers in Ghana, these findings establish a baseline for future research, offering a theoretical foundation for further exploration into sustainable roofing practices in the Ghanaian construction industry.